i have used level transmitter in starch cooking preparation tank. tank total height 2mtr.sometime LT display shows some error value when tank is fully empty and diaphragm side i already checked okay no problem in diaphragm area. field cable checked 24volt and mA shows correct value while tank empty mA is 4mA. 4mA i needed that 0% but display showing 10% or 15% percentage values are varying continously please give any good solution for me.....

0 Answers  

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How does a redundant controller comes in line when the main controller fails??

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If a normal magnetic type flow transmitter that can measure flow, temperature and show this parameters on field, is it possible by any means to get this (flow and temperature) parameters info. On dcs? And if yes then with HART, FO communication or any other communication system?

1 Answers   Process Control Technologies,

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units of pressure,flow, level,temperature? principle of pressure gauge? calibration of pressure tx., level tx., temperature tx.flow tx.? description of two wire ,three wire and four wire R.T.D.? WHAT IS INPUT AND OUTPUT OF TX.? WHAT IS INPUT AND OUTPUT OF R.T.D. AND THERMOCOUPLE? WHAT IS HOT LOOP AND COLD LOOP? WHAT IS INPUT AND OUT PUT AND OUTPUT OF D.C.S. AND P.L.C.? PRINCIPLE AND WORKING OF HART? WHAT IS PNP AND NPN PROXY? CALIBRATION OF PRESSURE ,LEVEL ,FLOW SWITCH? DESCRIPTION OF FIELDBUS FOUNDATION? WORKING OF SOV.?

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What is duty of as-built engineer.

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what is see back effect?

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Please explain about FAT? What is the difference between FAT and SAT?

6 Answers   IBM,

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what about your moleg in pogrees with company

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Describe the functions of the Operator Interface including the considerations related to alarming and display layout/configuration/layers.

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plz... clarify my answer, how to calibrate vaccum (DP)leveltransmitter,it is hart. (digital).DETAILS:(coloumn)closedtank height 2650mm,and tx range is 0-1500mmH20.

2 Answers   KNPC,

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Watt is Wrms define rms?

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what is the criteria to decide conductor size of a cable ?

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